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The human data is almost nonexistent
Regulation of catabolic gene expression in normal and degenerate human intervertebral disc cells: implications for the pathogenesis of intervertebral disc degeneration
[2] It is one of the few peptides that has crossed the boundary from laboratory research into widespread commercial skincare products, appearing in serums, creams, and post-procedure treatments marketed for anti-aging effects
doi: 10.1016/S0009-8981(03)00200-6
By Day 7, GHK-AgNPs maintained the fastest healing rate, followed by GHK-Cu-AgNPs, the positive control, GHK-Cu, and the untreated control